Year current US$ 1978 88630.5347 1979 94019.5844 1980 47330.6552 1981 184005.2009 1982 60863.1149 1983 288663.8641 1984 91542.2589 1985 133552.0744 1986 231009.6323 1987 299464.4046 1988 134296.5961 1989 156735.7332 1990 875882.3872 1991 1595029.116 1992 2314175.844 1993 3033322.573 1994 3752469.063 1995 4471615.82443076 1996 5727663.14185844 1997 6145602.57896858 1998 5563166.58663669 1999 4247204.29865939 2000 6050763.423885 2001 5363974.6917477 2002 2846533.11163557 2003 5989329.18128731 2004 6852364.36149356 2005 11028154.17189 2006 0 2007 14409511.0508501 2008 20654067.5553656 2009 13846230.0325314 2010 38428998.663363 2011 21792198.4497528 2012 22586458.5623401 2013 16527000.6094923 2014 29467150.8528989 2015 18458042.2530413 2016 18458042.2530413 2017 18458042.2530413 2018 18458042.2530413 2019 18458042.2530413 2020 18458042.2530413 2021 18458042.2530413 2022 18458042.2530413 2023 18458042.2530413